/usr/include/osgText/FadeText is in libopenscenegraph-3.4-dev 3.4.0+dfsg1-4+b3.
This file is owned by root:root, with mode 0o644.
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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 | /* -*-c++-*- OpenSceneGraph - Copyright (C) 1998-2006 Robert Osfield
 *
 * This library is open source and may be redistributed and/or modified under
 * the terms of the OpenSceneGraph Public License (OSGPL) version 0.0 or
 * (at your option) any later version.  The full license is in LICENSE file
 * included with this distribution, and on the openscenegraph.org website.
 *
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * OpenSceneGraph Public License for more details.
*/
#ifndef OSGTEXT_FADETEXT
#define OSGTEXT_FADETEXT 1
#include <osgText/Text>
namespace osgText {
class OSGTEXT_EXPORT FadeText : public osgText::Text
{
public:
    FadeText();
    FadeText(const Text& text,const osg::CopyOp& copyop=osg::CopyOp::SHALLOW_COPY);
    META_Object(osgText,FadeText)
    /** Set the speed that the alpha value changes as the text is occluded or becomes visible.*/
    void setFadeSpeed(float fadeSpeed) { _fadeSpeed = fadeSpeed; }
    /** Get the speed that the alpha value changes.*/
    float getFadeSpeed() const { return _fadeSpeed; }
    /** Draw the text.*/
    virtual void drawImplementation(osg::RenderInfo& renderInfo) const;
protected:
    virtual ~FadeText() {}
    void init();
    struct FadeTextUpdateCallback;
    friend struct FadeTextUpdateCallback;
    typedef std::map<osg::View*, osg::Vec4 > ViewBlendColourMap;
    ViewBlendColourMap& getViewBlendColourMap() { return _viewBlendColourMap; }
    const ViewBlendColourMap& getViewBlendColourMap() const { return _viewBlendColourMap; }
    float _fadeSpeed;
    mutable ViewBlendColourMap _viewBlendColourMap;
};
}
#endif
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